Clinical and functional characteristics, possible causes, and impact of chronic cough in patients with cerebellar ataxia, neuropathy, and bilateral vestibular areflexia syndrome (CANVAS)
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Published:2023-11-02
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ISSN:0340-5354
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Container-title:Journal of Neurology
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language:en
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Short-container-title:J Neurol
Author:
Palones EstherORCID, Curto Elena, Plaza Vicente, Gonzalez-Quereda Lidia, Segarra-Casas Alba, Querol Luis, Bertoletti Federico, Rodriguez María José, Gallano Pía, Crespo-Lessmann Astrid
Abstract
AbstractCerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome (CANVAS) is an hereditary autosomal recessive disease. Recent studies propose including chronic cough (CC) as a symptom of CANVAS. For 10 patients with CANVAS as genetically confirmed by biallelic expansion of the AAGG repeat motif (AAGGGexp) in intron 2 of replication factor C subunit 1 (RFC1), our aim was, as a multidisciplinary team, to describe clinical and functional characteristics and possible causes of CC following European Respiratory Society (ERS) recommendations, and to evaluate CC impact on quality of life (QoL) using self-administered questionnaires (Cough Severity Diary, Leicester Cough Questionnaire, Discrete Emotions Questionnaire, and EQ-5D-5L). In all 10 patients, the CC was a dry cough that developed several years prior to the neurological symptoms (mean 14.2 years); 7 patients had symptoms compatible with gastroesophageal reflux (GER), 5 with pathological GER diagnosed by 24-h esophageal pH testing, and 6 patients had impaired esophageal motility diagnosed by high-resolution esophageal manometry, most frequently ineffective peristalsis. Although further studies are required for confirmation, we conclude that CC may be a characteristic prodrome of CANVAS and may be related to GER and esophageal disorders. Furthermore, CC affects patients’ QoL, especially in the psychosocial sphere.
Funder
Societat Catalana de Pneumologia Sociedad Española de Neumología y Cirugía Torácica Instituto de Salud Carlos III Centro de Investigación Biomédica en Red de Enfermedades Raras Ministerio de Universidades Universitat Autònoma de Barcelona
Publisher
Springer Science and Business Media LLC
Subject
Neurology (clinical),Neurology
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